SKU: 34890138581

Hillman Yellow Dichromate Steel 5/16 in. USS Flat Washer, 100-Pack

Sale price$17.09 Regular price$18.99
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Description

Hillman Yellow Dichromate Steel 5/16 in. USS Flat Washer, 100-PackHillman 5 16 in. USS Flat Washer (Yellow Dichromate), 100 Pack Durable yellow dichromate steel flat washers sized for 5 16 inch USS bolts distribute load and protect materials from damage. Ideal for enhancing fastener security and reducing wear in wood, metal, and general construction applications. Key Features: Corrosion Resistant Finish: Yellow dichromate steel helps resist rust and wear USS Compatibility: Sized for use with 5 16 inch USS threaded

Hillman 5/16 in. USS Flat Washer (Yellow Dichromate), 100-Pack

Durable yellow dichromate steel flat washers sized for 5/16-inch USS bolts distribute load and protect materials from damage. Ideal for enhancing fastener security and reducing wear in wood, metal, and general construction applications.


Key Features:

  • Corrosion-Resistant Finish: Yellow dichromate steel helps resist rust and wear
  • USS Compatibility: Sized for use with 5/16-inch USS threaded bolts
  • Load Distribution: Flat design spreads pressure to prevent material damage
  • Multi-Material Use: Suitable for wood, metal, and general fastening projects
  • Bulk Convenience: 100-pack for jobs requiring consistent hardware

Specifications Table:

Specification Details
Material Steel
Finish Yellow dichromate
Washer Type USS flat washer
Size 5/16 in (for use with 5/16 in bolt or screw)
Package Quantity 100 pieces

Frequently Asked Questions (FAQ):

Q: What bolt size do these washers fit?
A: They are designed for use with 5/16-inch USS bolts or screws.


Q: What is the finish on these washers?
A: They have a yellow dichromate finish on steel for improved corrosion resistance.


Q: Can these be used with other finishes?
A: For best results, match washer finish to your existing fasteners to avoid potential galvanic reactions.


Q: Where are flat washers typically used?
A: Use them to distribute load, prevent fastener heads from embedding into material, and enhance joint security.


Q: How many washers are included?
A: 100 washers per retail package.


A Polished Industrial Touch for Seamless Fastening

The yellow dichromate sheen brings a refined industrial note to utility, elevating everyday hardware into a purposeful accent. Its clean, flat profile offers a tidy finish while protecting surfaces, perfect for cabinetry or exposed shelving details. Pair with matching fasteners for a cohesive, professional look across fixtures and custom builds. This is the quiet essential that ensures your spaces feel both intentional and enduring.


Equip your project with reliable, corrosion-resistant fastening—add this 100-pack of Hillman 5/16 in. USS flat washers to your cart today.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 34890138581

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4.4 ★★★★★
Based on 16 reviews
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Verified Purchase
theminker
Waukegan, US
★★★★★ 5
Great solution for 1 USB C laptop
Works well for my laptop with only one USB C port that I wanted to have an external monitor and a monitor extender. Having two HDMI ports was the perfect solution to now have 3 monitors to work from.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 19, 2026
G
Verified Purchase
Greg Doyle
Birmingham, US
★★★★★ 1
Worked for 4 months then died, UGREEN honored the warrenty
I bought this in October 2025 for my wife’s laptop to run 2 monitors and other peripherals. It worked until February 2026 when it just died, not charging laptop, monitors, mouse and keyboard all not working. I did the diagnostic procedure, restarted laptop, shut down laptop and restarted, switched off power strip then switched it back on, and then tried the dock on my M1 MacBook Air with no success. I plugged the USB C power cable directly into laptop and it instantly started charging. Supposedly this hub has a 2 year warranty, but the UGREEN site doesn’t have a clear way to submit a warranty claim. I sent an email to one listed on their site so will see if they respond and honor the warranty. Update Feb 2026: I contacted UGREEN customer support via email and the same night got an email requesting the invoice, i sent a copy; the next night i got another reply asking if a refund would be satisfactory, I replied a refund would work; the next night I received an email saying a refund would be issued, the next night I received an email from Amazon saying a full refund had been issued. UGREEN did stand behind their warranty, but the warranty claim process does not have a clear how to proceed, you just send an email and hope someone responds.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 1, 2026
S
Verified Purchase
Singh1699
Houston, US
★★★★★ 5
Game-Changing Dock That Transformed My Setup
I’ve been using the UGREEN 7-in-1 Docking Station, and it has been a **game-changer** for my setup. It’s made my workspace so much more efficient and organized, and everything I need connects easily through one compact device. The build quality feels solid, performance has been reliable, and it has truly been monumental in improving my daily workflow. Five stars all the way — highly recommend.
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Reviewed in the United States on April 30, 2026
D
Verified Purchase
Draco76123
Charlottesville, US
★★★★★ 4
Does what it claims to do.
Initially hooked it up to test and it worked as expected, so far. I used this on a Windows 11 laptop and both monitors worked perfectly. I bought this to set up my work from home setup and I think it's going to work out just fine. One thing I didn't realize until I got the item and hooked everything up was that there's no ethernet port. I think I was mainly concerned about the dual monitor capability and price when I was doing my research that I completely overlooked the ethernet, not a deal breaker though, I'll just have to make two connections instead of just one USB-C connection to my laptop. The cord is definately not long enough, in my opinion. That fixed USB-C cable is 13 and 3/4 in long. I have an extension though but if I didn't have it, I would have had to buy one. Thats not really necessary unless you want a nice clean looking workstation with all the cables tucked away nicely. I plan on using this in conjunction with a KVM switch that I'll be purchasing later. The power pass through seems to work just fine. My laptop appears to be charging normally, no popup saying my battery is charging slowly. I'm using a 65 watt power brick for the power, not 100 watt like the description suggests. Although, my laptops original power cord is also rated at 65 watts. Overall, initial impressions, seems like a good cheap option for a laptop dock, especially if you work from home sometimes. I gave four stars just for the fact there isn't an ethernet connection, otherwise would have been five. Many other cheap docks like this one have an ethernet port, why not this one? I would suggest using ethernet over Wifi any time it's feasible. Thanks.
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Reviewed in the United States on November 23, 2025
M
Verified Purchase
mephusto
Fort Morgan, US
★★★★★ 3
Disconnects sometimes..
This dock fit the bill for what I needed, a portable dock for when I go on trips. At first I was really happy with it but I had noticed that it did not seem to charge correctly. After some trial and error I realized the same thing that others have said about it. When my laptop reaches full charge it says "Connected" but will no longer charge. If i disconnect then reconnect it starts charging again. The only other big problem for me was that it did that while I had a portable ssd connected and caused file transfer issues. I think it will still be okay for on the road and connecting keyboard and mouse and monitor but that is all. I am undecided if I will keep or return.
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Reviewed in the United States on January 3, 2026

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